Yarn-guide-controlling mechanism for bobbin or cop builders.



No. 726,570. PATENTED APR. 28, 1903.

Y P. PURGELL. YARN GUIDE GONTROLLING MECHANISM FOR BOBBIN OB. G OPBUILDERS.

APPLICATION FILED IEB. 15, 1902.

N0 MODEL. b m

lliuirnn drains Parano Oriionf.

PATRICK PURCELL, Ol*` PROVIDENCE, RHODE ISLAND.

YARN-GUIDE-CONTROLLING MECHANISM FOR BOBBIN OR COP BUILDERS.

SPECIFICATION forming pari'. Of Letters Patent NO. 726,570, dated April28, 1903..

Application filed February l5, 1902. Serial No. 94,209. (No model.)

To cal whom it may concern.'

Be it known that I, PATRICK PURCELL, of Providence, in the county ofProvidence and State of Rhode Island, have invented certain new andusefulImprovements in Yarn-Guide- Controlling Mechanism for Bobbin orCop Builders, of which the following is a specification.

The present invention relates to mechanism for controlling the windingof yarns in the building of bobbins or cops on machines designed forthis particular purpose' wherein the yarns are taken from a large drumand the ends led to a line of bobbin-carrying spindles, and theprincipal objects are to provide for a-cross-Wind which will effectuallyprevent slnbbing off when the yarn is dofted from the bobbin, myinvention insuring the crossingr of each convolution laid on in atraverse of the yarn-guide in one direction by a convolution laid on inthe traverse of the said guide in the opposite direction, to wind agreater quantity of yarn on a bobbin without increasing the dimensionsof the iinished product, and to obviate loose winding at the base andnose of the cop.

Another object of the invention is to provide for such latitude ofadjustment throughout'the mechanism as will enable the'building of thecop to begoverned to a nicety according to the character of yarn andjust the desired build of bobbin attained under all circumstances.

Of course it will be understood that the build of the bobbin dependsupon the manner in which the yarn is guided along the spindle, and it isthe mechanical agencies by which this is controlled that I have treatedin evolving the present invention.

Of the drawings which accompany and form part of this specification,Figure l represents a complete machine embodying my invention, shownpartly in side elevation and partly in section. Fig. 2 shows the same incross-section, taken on line 2 2 of Fig. l. Fig. 3 shows in perspectivecertain means for effecting intermittent adjustment. Fig. 4 shows adetail in perspective; and Fig. 5 represents diagrammatically a completecop, illustrating the wind effected by the operation of my invention.

of the machine.

The base of the machine, which rest-s r;-V edly upon the lioor of themill, comprises legs a and a rectangular frame composed of end bars band side bars b', with osets on the inner sides extending from end toend of the bars and providing slideways which have cover-strips c,secured to the frame-bars, as clearly shown in Fig. 2. A carriage ofrectangular form is supported by said base and composes upright sides dand ends ci', outer base- Ranges d, engaging the slideways of thesupporting-frame, inner base-flanges d2, and an intermediate cross-bard3, from which rise a pair of uprights d4. One of the upright sides ofthe said carriage is formed with a series of holes, in any one of whichmay be secured a wrist-pin a' for a pitman z', through which thecarriage is reciprocated by connection with apower-driven crankof themachine. Within the carriage and resting upon its iianges d2 is asupplemental carriage composed of angular side bars e and connecting endbars e', and this supplemental carriage has secured upon its forwardcross-bar a block f, comprising a beveled-edge bearing f be tweenshoulders f and f2, and anutfi. At the opposite end of the supplementalcarriage there is adj ustably secured a bracket g, having `a slottedupright portion g', in which is fastened a stud 7i, supporting a Rangedroller t'. The latter and the edgej" of blockf support a cam-rail j,which is guided and held in place by the shoulders f and f2, theuprights (Z4, and the flanges of the roller i.

The rail is held from longitudinal movement by a screw t, engaging avertical slot t' in the rail and entered in a part of the fixed frameThe bottom edge of this rail extends from the frontend rearwardly acomparatively short distance on a slight upward angle, as shown at j',and thence for a greater distance on a sharp upward angle, as shown atj.At the opposite end the edge of the rail runs on the angle of the saidpartj", as shown atjz, there being no edge portion corresponding inangularity with the front edge portionj. The top edge of the bar has anacting stretch lo extending from a forward elevated point 7o irstdownward a short distance on a comparatively abrupt angle, thence on aslight downward angle a considerable the rear edge P7'2 rests upon theroller i.

distance toa point 7c", and then more sharply downward a short distance,as shown at 7c3. Uprghts m, secu red to the sides b of thesupporting-frame and connected by a top crossbar m', carry guide-rodsm2, on which a vertically-reciprocating frame 'n is mounted, this framecarrying a roller o, resting upon the top edge of the cam-rail. Anotherrollerp on the front of said frame is straddled by the hook q, whichconnects with the sickle 0 of the yarn-guiding structure, so thatreciprocations of the frame n control the building of the cop.

The means for varying the traverse of the frame n by shifting theposition of the camrail comprise a screws, journaled in the front end ofthe carriage and engaging the nut f3, an arm s', journaled on said screwand carrying a pivoted pawl s", a ratchet s2, affixed to the screw andengaged by the pawl, a cam S3, affixed to the base of the machine in thepath of the said arm, and a stop-screw 35, secured in a lug of thecarriage to limit the gravitation of the arm. It will be seen thatthrough the above-described means a step-by-step shifting of the innerframe or supplemental carriage may be effected. The throw of the pawlwill be so regulated by adjustment of the screw 35 that it will in eachaction turn the ratchet-wh eel the extent of a single tooth.

It will now be seen that with constant reciprocation of the carriage andintermittent shifting of the supplemental carriage the yarn-guide may bevaried in its traverse to suit requirements in the building of the cop.At the outset of the operation, when the bobbins are bare and thewindingis to commence, the inner or supplemental carriage is in itsfarthest forward position, so that the slightlyinclined partj of theunder edge of the camrail rests at iis forward part upon thesupporting-edge f', while the lowermost part of Under these conditionsthe traverse of the carriage back and forth lays the yarn on the bobbinfrom the base a given distance toward the nose. As the inner orsupplemental carriage is shifted step by step the cam-rail lowers, sothat the laying on of the yarn will rcom mence at ahigher poi n t on thebobbin with each reciprocation of the carriage and finish higher up onthepbobbin. In order, however, to obtain the desired filling out of thebobbin at the base, I have fashioned the lower edge of the cam-rail asshown and described, so that until the supporting edge j" passes theslightly-inclined part j' the front end of the i part j' of the cam-railwhen the full diameter of the cop is attained, and thereafter the raillowers to the same extent at each end, so that the point of commencementof the upward traverse of the yarn-guide advances to the same extentwith each reciprocation of the carriage as does the point of completion.In the diagram Fig. 5 lines 2 3 4 indicate the cross-section the cop hasattained when the supporting edgef passes the slightly-inclined party"of the under edge of the cam-rail. It will 'be noted that no conicalenlargement of the bobbin-quill is necessary at the base portion inorder to fill out the yarn, and consequently more yarn can be carried onthe bobbin under my method of Winding.

The extent of traverse of the yarn-guide is of course governed by theupper edge of the cam-rail on which the roller rests, and as theadjustment of the rail remains the same during a complete up-and-downmovement of the yarn-guide the same number of winds of yarn are laid onduring both traverses of the guide, and each convolution laid on underone direction of traverse is crossed by a convolution laid on under thereverse direction of traverse of the yarn-guide, so that the yarn istied on and slubbing effectually guarded against. This cross-winding isindicated in the diagram Fig. 5 by the lines 5 6. It is to be noted thatthe increased inclination of the upper edge of the cam-rail at thepoints fc3 and Za will result in accentuating the rise and fall of theyarn-guide when it takes the yarn around the extremity of the nose ofthe cop and at the base of the latter, thereby insuring a tight wind atthese points, which is highly desirable.

The provision for adjustment of the roller t' makes it possible to varythe traverse of the yarn-guide to suit different conditions. The forwardposition of the inner or supplemental carriage will be regulated by astop-screw u, entered through the front cross-bar of the main carriage.When a set of bobbins has been filled and another set is to be started,the inner carriage can be run back to the starting-point by applicationof a crank to the squared end of the screw s.

It will now be seen that the construction described is well calculatedto fulfil all of the objects primarily stated. However, thisconstruction may be modified without departing from the spirit and scopeof the invention.

Having thus described my invention, what I claim as new is as follows:

l. In a cop or bobbin builder, the combination with the yarn-guidefollower; of a rail upon which said follower rests, said rail having anupper edge comprising an elongatedl portion with a gradual and uniforminclination and an abbreviated portion at the lower end of saidelongated portion and more sharply inclined than the latter; togetherwith means for reciprocating the rail the combined length of its saidedge portions; and means for intermittently changing the elevation ofICO IIO

said rail between each reciprocation, substantially as described.

2. In a cop or bobbin builder, the combination with the yarn-guidefollower; of a rail upon which said follower rests, said rail having anupper edge comprising an elongated portion with a gradual and uniforminclination and an abbreviated portion at the lower end of saidelongated portion and more sharply inclined than the latter; togetherwith means for reciprocating the rail the combined length of its saidedge portions; and means for intermittently changing the elevation ofsaid rail between each reciprocation, with provisions for tilting thesame, substantially as described.

3. In a cop or bobbin builder, the combination with the yarn-guidefollower; of a rail upon which said follower rests, said rail having anupper edge comprising an elongated portion with a gradual and uniforminclination and an abbreviated portion at the lower end of saidelongated portion and more sharplyinclined than the latter, said railhaving correspondingly-beveled under edges at each end; connected restson which said edges bear; a carriage for said rail and rests; means forreciprocating said carriage, and means for moving the rests step by stepin the carriage, substantially as and for the purpose described.

4. In a cop or bobbin builder, the combination with the yarn-guidefollower;.of a rail upon which said follower rests, said rail having anupper edge comprising an elongated portion with a gradual and uniforminclination and an abbreviated portion at the lower end of saidelongated portion and more sharplyinclined than the latter, said railhaving correspondingly-beveled under edges at each end, with anadditional differentiated bevel at one end; connected rests on whichsaid edges bear; a carriage for said rail and rests; means forreciprocating said carriage; and means for moving the rests step by stepin the carriage, substantially as and for the purpose described.

5. In a cop or bobbin builder, the combination with the yarn-guidefollower; of a rail upon which said follower rests, said rail having acam-shaped upper edge and under edges at each end correspondinglybeveled; connected rests on which said edges bear; a carriage for saidrail and rests; means for reciprocating said carriage; and means formoving the rests step by step in the carriage, substantially as and forthe purpose described.

6. In a cop or bobbin builder, the combination with the yarn-guidefollower; of a rail upon which said follower rests, said rail having acam-shaped upper edge and under edges at each end correspondinglybeveled with an additionaldifferentiated bevel atoneend; connected restson which said edges bear; a carriage for said rail and rests; means forreciprocating said carriage, and means for moving the rests step by stepin the carriage, substantially as and for the purpose described.

7. In a cop or bobbin builder, the combination with the yarn-guidefollower; of a rail upon which said follower rests, said rail having anupper edge comprising an elongated portion with a gradual [and uniforminclination and an abbreviated portion at the lower end of the saidelongated portion and more sharply inclined than the latter, said railhaving correspondingly-beveled under edges at each end; adjustable restson which said edges bear; a carriage for said rail and rests; means forreciprocating said carriage; and means for moving the rests step by stepin the carriage, substantially as and for the purpose described.

8. In a cop or bobbin builder, the combination of a supporting-framecomprising horizontal and upright portions; a sliding follower in theupright portion thereof with suitable yarn-guide connections; areciprocating carriage on the horizontal portions of the frame; an innercarriage adjustable longitudinally of the first-named carriage andequipped at opposite ends with rests; a rail having angular under edgesbearing on said rests respectively and an inclined upper edge upon whichthe follower rides; and means for shifting the inner carriage betweenreciprocations of the main carriage, substantially as described.

9. In a cop or bobbin builder, a reciprocating rail, the same having anupper edge comprising a moderately-inclined intermediate portion andmore sharply inclined end portions, substantially as and for the purposedescribed.

l0. In a cop or bobbin builder, areciprocating rail, the same having anupper edge comprising an elongated moderately-inclined portion and amore sharply inclined abbreviated portion at the lower end of thelatter, substantially as and for the purpose described.

1l. The combination with the yarn-guide follower; of a cop rail uponwhose upper edge said follower bears; a pair of rests for opposite endsof said rail with provisions for varying the elevation of the rail bychanging the longitudinal relations of the same and the two rests; meansfor intermittently changing such longitudinal relations; and means forreciprocating the rail and rests as one, substantially as described.

l2. The combination with the yarn-guide follower; of a cop-rail uponwhose upper edge said follower bears; a pair of rests for opposite endsof said rail with provisions for varying the elevation of the raildifferentially at opposite ends by changing the longitudinal relationsof the same and the two rests; means forintermittently changing suchlongitudinal relations; and means for reciprocating the rail and restsas one, substantially as described.

13. The combination of a yarn-guide fol- ICO IIO

lower; a, cop-rail on which the latter' bears; naine to thisspecification,l in the presence of means for reciprocating the rail; andmeans two subscribing Witnesses, this 7th day of for intermittentlychanging its elevation, lFebruary, A. D. 1902. With provisions fordierentiai change of eie- 5 Vation at opposite ends to vnr-y theiuelina- Witnesses:

PATRICK PURCELL.

tion of the mil, substantially as described.

In testimony whereof I have signed my GEORGE GEB, WILLIAM Wo oDLooK.

